I could shoot myself. I should know this. I had this working for some reason and now I don't know
what is going on.
monsters.c:47: error: dereferencing pointer to incomplete type
monsters.c:48: error: dereferencing pointer to incomplete type
bizzare things are happening. I can break different files with different messed up tries at creating data structures
cs61c-bg@nova [60] ~/proj/01 > ls
Makefile globals.c monsters.c puzzles.h
commands.c globals.h monsters.h puzzles.o
commands.h level.c monsters.h.ta spec/
common.h level.h obj/ special_gamefiles/
game* level.h.ta patch.c testworld.lvl
game.c level_table patch.h util.c
game.h main.c puzzles.c util.h
cs61c-bg@nova [61] ~/proj/01 >
sometimes I break commands, sometimes monsters. commands has the room structure
/* We need this typedef because exit_t contains a room_t*,
* but the compiler hasn't seen room_t yet. This works
* because pointers are all the same size, and the
* compiler doesn't need to know what *kind* of pointer a
* room_t* is. */
typedef struct room room_t;
// a struct representing an exit
typedef struct {
room_t *dest;
bool locked;
} exit_t;
// a struct containing all the information which represents a room
struct room {
int room_id;
char *description;
mob_t *mob;
exit_t exits[NUM_DIRECTIONS];
puzzle_t puzzle;
};
for the life of me I have been confused about the mob_t thing. They had it typedef void * mob_t
and I made the code work by just casting mob_t to mob_iterator_t, and now I can't get it back.
This is making no sense.
1 #ifndef MONSTERS_H
2 #define MONSTERS_H
3
4 // sets monster rarity, so that on entering any room,
5 // a monster is generated with probability 1 / MONSTER_RARITY.
6 #define MONSTER_RARITY 5
7
8 // an instance of this struct defines a monster and provides all its numerical attributes.
9 // the monsters[] array in monsters.c lists instances of this struct that are used as templates
10 // for creating monsters.
11
12
13 typedef struct {
14 char *name;
15 char *attack; // attack name, e.g. "bite"
16 unsigned level; // a monster can only be spawned when its level <= the player's level
17 int hp; // hp stands for "hit points" or "health points"
18 unsigned damage; // damage done when attacking the player
19 unsigned exp; // experience points provided when the player kills the monster
20 unsigned frequency; // a value that reflects the relative frequency with which a monster is spawned
21 char *description; // a description of the beast
22 } monster_t;
23
24
25 /*** DEFINE THE mob_t TYPE HERE ***/
26 /*** use a typedef and any struct definitions you need ***/
27 typedef struct mob_iterator mob_iterator_t;
28 /*** DEFINE THE mob_iterator_ty TYPE HERE ***/
29 typedef struct {
30 /*** YOUR MEMBER VARIBLES HERE ***/
31 monster_t **monster_list; /* simply a list of monster pointers */
32 int monster_count; /* keep track of the count to make counting them easy */
33 int this_monster; /* index to the array of monsters will work for getting the next one */
34 mob_iterator_t * next; /**/
35 } mob_iterator;
36
37
38 typedef void * mob_t;
39
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